Error message even when picture folder is open

[Ivylodge]

Hi,
Could you assist as to why i get a run time error message 104,unable to get the insert property of the pictures class.

I enter a part number & then leave the cell.
I see the msgbox.


I click on Yes.
Now i see the error message BUT also the picture folder opens.
I close the picture folder and now the error message is shown on the screen.

I dont need to see this error message as i selected Yes to open the picture folder.

Please can you advise how i stop this message showing.
Thanks very much

Private Sub Worksheet_Change(ByVal Target As Range)
Dim shp As Shape
If Intersect(Target, [A:A]) Is Nothing Then Exit Sub
If Target.Row Mod 20 = 0 Then Exit Sub
On Error GoTo son

For Each shp In ActiveSheet.Shapes
If shp.Type = msoPicture And shp.TopLeftCell.Address = Target.Offset(0, 1).Address Then shp.Delete
Next

If Target.Value <> "" And Dir("C:\Users\Ian\Desktop\SKYPE\LOCK PICK ME\" & Target.Value & ".jpg") = "" Then 'picture not there!
    If MsgBox("Photo " & Target.Value & " Doesn't exist" & vbCrLf & "Open The Picture Folder ?", vbCritical + vbYesNo, "No Photo Found") = vbYes Then
        CreateObject("Shell.Application").Open ("C:\Users\Ian\Desktop\SKYPE\LOCK PICK ME\")
        Else
        Exit Sub
    End If
End If
ActiveSheet.Pictures.Insert("C:\Users\Ian\Desktop\SKYPE\LOCK PICK ME\" & "\" & Target.Value & ".jpg").Select
Selection.Top = Target.Offset(0, 1).Top + 5
Selection.Left = Target.Offset(0, 1).Left + 5

With Selection.ShapeRange
.LockAspectRatio = msoFalse
.Height = Target.Offset(0, 1).Height - 10
.Width = Target.Offset(0, 1).Width - 10
End With
Target.Offset(1, 0).Select
son:

End Sub